Alert archive / Missouri / Flash Flood Warnings in 2018
Flash Flood Warning 7, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 21, 2018, 3:29 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 6 hr. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 21, 2018, 3:29 PM CDT (20:29 UTC)
- Expired
- May 21, 2018, 9:30 PM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 93 km from the middle of the area, began a volume at 20:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 21, 3:35 PM CDT | FLASH FLOOD | 1 Ese Park Hills, MO | UNION PACIFIC LINES REPORTED APPROXIMATELY 50 YARDS OF SOIL WASHED OUT NEAR MAIN STREET IN PARK HILL. TIME OF EVENT ESTIMATED. REPORT RELAYED BY MEDIA- COURTESY OF KTVI. |
| May 21, 4:04 PM CDT | FLASH FLOOD | Leadington, MO | WATER OVER US HIGHWAY 67 CARRYING SOME DEBRIS IN IT. DEPTH UNKNOWN. |
| May 21, 4:20 PM CDT | FLASH FLOOD | Park Hills, MO | WATER RESCUE AS CAR GOT SWEPT AWAY BUT OCCUPANTS GOT OUT SAFELY. NO REPORTS OF INJURIES. NUMEROUS BUSINESSES AND HOMES FLOODED ALONG THE TOWN'S LOW AREAS NEAR THE FLAT RIVER. RELAYED VIA KMOV. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.5 hours before the alert went out and 299 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
583 WGUS53 KLSX 212029 FFWLSX MOC186-187-220230- /O.NEW.KLSX.FF.W.0007.180521T2029Z-180522T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service St Louis MO 329 PM CDT MON MAY 21 2018 The National Weather Service in St Louis has issued a * Flash Flood Warning for... West central Ste. Genevieve County in southeastern Missouri... West central St. Francois County in southeastern Missouri... * Until 930 PM CDT Monday. * At 329 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Farmington, Bonne Terre, Desloge, Bismarck, Leadwood, Park Hills, Leadington and Frankclay. This also includes St. Joe State Park and Missouri Mines Historic Site. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. && LAT...LON 3797 9035 3785 9029 3774 9064 3788 9064 $$ Tilly
1 follow-up statement
347 WGUS73 KLSX 220223 FFSLSX Flash Flood Statement National Weather Service St Louis MO 923 PM CDT MON MAY 21 2018 MOC186-187-220233- /O.EXP.KLSX.FF.W.0007.000000T0000Z-180522T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Ste. Genevieve MO-St. Francois MO- 923 PM CDT MON MAY 21 2018 ...THE FLASH FLOOD WARNING FOR WEST CENTRAL STE. GENEVIEVE AND WEST CENTRAL ST. FRANCOIS COUNTIES WILL EXPIRE AT 930 PM CDT... Flood waters have receded. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3797 9035 3785 9029 3774 9064 3788 9064 $$ Maples
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 7:13 PM CDT | Severe Thunderstorm Warning | LSX | Moniteau | 47 min |
| May 20, 7:57 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Moniteau | 48 min |
| May 20, 8:24 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Gasconade, Osage | 51 min |
| May 20, 8:35 PM CDT | Special Weather Statement | LSX | Audrain | 40 min |
| May 20, 8:56 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade, Osage | 49 min |
| May 20, 9:36 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Washington | 39 min |
| May 20, 9:42 PM CDT | Special Weather Statement | LSX | Gasconade | 48 min |
| May 20, 10:10 PM CDT | Special Weather Statement | LSX | Franklin, Saint Charles, Washington | 65 min |
| May 20, 10:55 PM CDT | Special Weather Statement | LSX | Iron, Jefferson, Saint Francois | 50 min |
| May 21, 12:02 AM CDT | Special Weather Statement | LSX | Lincoln | 28 min |
| May 21, 8:55 AM CDT | River Flood Warning | LSX | Crawford, Washington | 44 hr |
| May 21, 3:23 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 20 min |
| May 21, 4:00 PM CDT | Flash Flood Warning | LSX | Washington | 6 hr |
Nearby
Flash Flood Warnings in Missouri, 2018Every flash flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.